Machine for making spherical bodies or balls.



\ No. 802,495. PATENTED UGT. 24, 1905.

M. F. CHRISTENSEN.

MACHINE FOR MAKING SPHERIUAL BODIES 0R BALLS. APPLICATION FILED DEO.19,1902. RENEWED MAR. 29, 1905.

2 SHEETS-BHBET 1.

"""IIII INVENTEIF.

BY 7 V- MUY M. F. CHRISTENSEN.

MACHINE FOR MAKING SPHERIGAL BODIES OR BALLS. APPLICATION FILED 1330.19, 1902. RENEWED MAE.29,1905.

PATENTED OCT. 24, 1905.

2 SEEETS-SHEET 2.

YES.

A B in:

; NIT ST MARTIN CHRISTENSEN, 0F AKRUN, OHIO.

fipeciflcation of Letters 1-"atent.

Patented Oct. as, root.

Application filed December 19, 1902. Renewed. March 29, 1906. Serial No. 252,676.

To all whom, it may concern.-

Be it known that l, MARTIN FCHRIsTnNsnN, a citizen of the United States, residing at Akron, in the county of Summitland State of Ohio, have invented certain new and useful improvements in Machines for Making Spherical Bodies or Balls; and l do declare that the following is a full, clear, and exact description of the invention, which will enable others skilled in the art towhich it appertainst make and use the same.

My invention relates to a machine for making spherical bodies or balls; and the object of the invention is to provide a machine which adapted to receive plastic materials of different kinds and in varying quantities, accord ing to the size o'l. sphere wanted, and to roll the same into the form of a perfect sphere or ball, all substantially as shown and described, and particularly pointed out in the claims.

in the accompanying: drawings, Figure l is a plan View of my machine in. a complete and operative condition, and Fig, is a side elevation thereof. Fig. 3 is a longitudinal sectional elevation of the machine on line a: at, Fig. 1. Fig. 4iis an elevation of the rocking support, which carries one of the rollers or rolling wheels with the roller or wheel and its shaft thereon and showinga crosseection of the main frame carrying said support, as hereinafter more fully described. Fin. 5, Sheet 1, is crosssection of the adjacent portions oi the two rollers, talren on line 3/ 3 ,"lllig', 9,,

and showings ball lodged between the rollers as occurs in actual practice. Fig. ll, Sheet 2,

is a side elevation oi a modification oi the machine.

The machine thus shown is-adapted to produce perfect spheres without other or further linishins; or dressing than the machine itself pgivcs to the article in the place where and. at the time the sphere or hall is rolled, and while the machine can he successfully employed to convert many didercnt kinds of materials into balls or hell shape it is especially well adapted to the production of glass hells or spheres, and for the purposes of this description it may he assumed that the machine used csipecinlly for themanui'ncture of glass balls of diil'crent sizes, from small marbles to balls of an. inch or more in diameter, the matter cl size not heing material. it may he iurther observed in this connection that the machine comparatively small H1 size, since the original drawings in this case are about half the full size of a machine adapted to produce halls over an inch in diameter.

A represents the main frame, which may he provided with any suitable means of support, such as a table or the like, and on which a se: ries of machines may be placed, if desired.

B is a drive-shaft carrying a pulley 7), through which power is applied and which may be substituted by gear or other wellknown connections, according to convenience, and C is a driven shaft connected with shaft lit by sprocket-chain E, running over sprocket wheels 3) and 0 on said shafts B and C, respectively, and over idler cl on standard or bracket l), erected upon frame A and standing far enough above the same to give the desired elevation to idler-wheel (Z, as hereinafter more fully described.

and represent the two "forming wheels, rolls, or rollers, and they are preferably relerred to herein as rolls or rollers, because they roll the hall into shape. Roller Gr is mounted on shaft ll and roller H on shaft U and both have uniformly grooved periplr cries guand it, respectively. 'llhese grooves are segmental in cross-section in their icrnr ing portion and ilared outwardly at each side outside of the said forming portion, and the two rollers are set in the same vertical plane with their peripheries directly opposite each other and in such relation as to just avoid contact at their nearest point or about as seen in Fig.

Roller it is purposely larger or of greater diameter than roller Gr, and for this reason is the master roll or roller of the pair, dominatfjang roller by means of its greater net-inhstall speed and at lastjcoutrolling the discharge of the hall or sphere El, as will he seen.

lilhaft carrying roller G, is supported in lined hearings on lrained i, while shalt U, carrying roller ll, isniohnted in or upon the rocking support la, which itself is carried, prelerahly, on needle-groin? pivotal Z, l 'ig. d,

- or their equivalents, engaged through flanges a in or upon main frame it This or any like or equivalent pivot for said rocking support L may be used, and shaitlC is exclusively carried hy said reciting sunportand has no di rect connection with ironic A The said frame .lh is shown as listings substantially tlehaped depression or drop o" of about the same height as support lb, while the top of the support comes on a plane somewhat above the 501; of frame A we; es s Eevei with shsfi "3, this bringing shafts emi C on fiche same level This cesstz'uetien end sewage men; sf parts efimds wow 30:? neeesseyy toenii fm play 0;? making mevemembef shaft C and .z'oalei H, as W53? sees such pie or sesame 1e seeemmefiee'ien the shafts its mile? be the work is previded fesey messes set-sex'ew 2 as one side of said support and sprng-pressed baiten the ether side. he bait is m berrei 1 which is s sJing 5, a Shea-t fellewer 6, and eserew F ehreugia sins 8 en file resin 4, e frem bearing against fellewew 6 '35; these simpie means esebied, in increase or diminish sire zeesien ef spying 5 seemed ring mes'e m bee wswi making of sun Wanted; as 1-. this pereieuez sees "is er: any .4 a" eqeivaie the end that s 1 2 d relies Chee the mm mm wswkmg peszi;

be round. eb ecvjiaoes v hevmg see is estme 'aiee eff WEN be I is predu e Leis maelmne e d elm no other 0? further *iwrk apes the 1 ei i 1s requiaefi 0 it fer market fihis sessile er ei'" feet is ob'tsieed shy-eagle we Bevel and pe- Celia! eonsmazeies and arrangement of reilers J H meunbing of relief H espe- 18; is ebsesvefi the; $116 gmeves in. ssi ere segzteess3 53w; em, semissherieal '"pped fines seigmoves it wili resting-grime Where the speee see she grooves is ezaetiy pmpoeionei to size, as seen in Fig. 2 and in pian Fig. this point the served susfeees of we grooves eeefeem exactly to the rounded sphere; but this else Eeeves the edges e1? the two grooves apart from each ashes edistance doubie the amount that each g move is less in dew than the radius of perfect eircie is size or ermss-seetim pies a distance (ieter mined by the diseases of the be, above the central 0% median line at ehe relis. Hence also when the sei i geeves eeme'approxi msteiy together as the clesri eemee fine between shafts B and C an oblong or oval forsis-bed sphere 01-? 3 4 a eiilshed se fsee be 0? glass at about eke piece 01 just above Where 1s be iimsheei end es mdlee'aed by i3, esd

be epe siiess 1 preferably, but set meeessseal ;n 4 s we the Ina-tens m0 semetnmg of a bail shape beiexe feeding 1:, es the i A 'Ti 3 n si g-b 1 ra 1 d sf-k mama-41.1 5: A, 1554 110,? "L .0 .u d has: mi] a lull shafts she sem s rate at speed m the saw genemi wrestles, 12 feliews, firse,

time the J dwellers rave In reverse dives twee the sine 0; week, ands second! that relie uz'eveis preportiesatel i isstee than i'o'i'uer i318 periphery as is is diameter sham Feller, W 1th these condieiens 'ese b wish a image e2 beH. of me'zerisv sixeneyend ef suitable si feel to we it is refied or fesflieeeu ism ifee form of e pesfeet sphere in the maid or peekeb she Pe iiers ebevs their diaineszcei cams? i- *1 3 sheet the eieveisien eeeueiefii by 27 experience has seewe (we the SjJhGPQ er beii (lees 110i;

les ae this it is perfectly foresee and, seeeefi umrli it has herdeee in pass en the refis their ezherwise r WW eizaciangering its shape. epeyeeiee i have feueei thetwith twe oppesedi segments? surfaces treveiing' reversefig, es in this immune e116 with space intefveeing the segments where no werk can be dieneg the materiel is see miisc: ever and ever in one (iizeeeien eniyn as weuid seem pmbebie, be?) the very feetthei it is uneven of ex perfee'iziy round $0 begin with causes it w engage es." adhere more one piece shes are maths! emi he tum or as he tweak? is ifievent ..veetions end; ways untii in is expesed ski around :0 she fermeiive ee siee ef the renews and such tuming goes i'eeviie'biy emi by reason of its inequeiiisies' UMJH at East; and speeiiy eii in equefiitbies sp kes? and e perfeet sphere is preduee i skis time also, sad espeeiaiiy in the manufacture of gisss bells is the bali feund. he be herd enough to be disehan ge ami the greater peripheral speed of reflex at the piece of week comes into service now and the said roEIler ifisei'i takes charge of the bail and? rolls it eiewn and out of the machine. This sctien is aceemmodeted erprovided for in the rocking spring-pressed support L, am? the said suppevt end its shaftG and roiier H hwy e freedem enough iae let the be?! pass down ems witheui; injeryss eresses the ciaw metrical center line between the shafts, where the rollers normally are closest together, and

spring 5 can have the finest adjustment needed for all sizes and kinds of Work. This giveand-take movement of shaft G of course requires more or less freedom in sprocket-chain E, and hence said chain is caused to run over adjustable idler d or its equivalent, whereby the amount of slack in said chain may be regulated as the machine may require.

The two rolls or rollers G and H are designed to run approximately in contact with each other when the ball or sphere is forming, and while this is somewhat modified when the rolls are adjusted to produce the larger sizes of balls the same principle and the same descriptive term holds good in all the normal relations of the rolls.

I might construct the machine so that either or both rolls could yield when the ball or sphere passes down between them, but such construction is regarded as merely a mechanical variation on what is here shown and not materially different therefrom, and therefore included within the terms of the claims.

It is seen that while the section of the mold thereof are not closed all around at the working point, but there are open or unwalled spaces oppositely between the edges of the grooves on the two rollers. This occurs because the said grooves are less than a halfcircle each in cross-section and for the further reason that the molding is done above the nearest point of contact between the rolls.

What [claim is- 1. In the manufacture of spherical bodies, a pair of oppositely-arranged rolls having grooves less than a semicircle in cross-section in their forming portions, and the said grooves outwardly flared at each side next to their forming portions and having unbroken curvature from the groove into the flared portion, substantially as described.

2. lln the manufacture of spherical bodies, a pair of oppositely-arranged rolls provided with uniform peripheral grooves less than a semicircle in cross-section, and one of said rolls adapted to yield in respect to the other roll, substantially as described.

3. lln a machine for making spherical bodies, a pair of rolls set out of contact with each other at their" nearest point and provided with grooves in their peripheries of less than a semicircle in cross-section, and means adapted to exert a yielding pressure upon one of said rolls, whereby when the bodies made between the rolls are discharged the said roll will yield, substantially as described.

4:. The means herein described for making spherical bodies, the same comprising a pair of rolls having grooves intheir peripheries, less than a semicircle in cross-section, and the said rolls set in relation to each other to produce-a mold for the balls at a point above the diametrical centers of said rolls, and the space between said grooves open at both sides and flaring laterally, and yielding supports for one of said rolls, whereby when a body is made the rolls automatically separate to discharge the same, substantially as described.

5. A machine for rolling spheres, comprising a pair of rolls having grooves opposite one another of less than a semicircle in crosssection, the said rolls arranged to stand apart at their horizontal center line, and one of said rolls mounted to yield in respect to the other roll, whereby a sphere can be rolled from hardening material above said center line and discharged downward between said rolls when finished and in a hardened state, substantially as described.

6. In a ball-making machine, a pair of grooved rolls and means to turn said rolls in opposite directions at their working point, in combination with a pivoted support for one of said rolls, means to adjust said support and means to hold said support in working position relatively to the opposite roll, substantially as described.

7. The main frame of the machine, the two grooved rolls mounted thereon, and a support for one of said rolls pivoted on said main frame and carrying the roll in its top portion, and a spring engaging said support to hold the roll thereon in working position relative to the opposite roll, substantially as described.

8. The two grooved rolls and the shafts carrying the same, a movable support for one of said shafts adapted to vary the space between the rolls, a chain connecting said shafts and means to regulate the slack in said chain, thereby providing for the give-and-talce movements of said movable support and the shaft thereon, a spring to hold said support yieldingly in working position, the said rolls being supported out of contact with each other at all points, substantially as described.

Witness my hand to the foregoing specification this 6th day of December, 1902.

MAR'lTlN h. CHRISTENSEN.

Witnesses:

H. T. ll rsrrna, R. B. MOSER.

IIO 

